Air cooled chimney



May 15, 1962 H. J. FRANZ 3,034,415

AIR CooLED CHIMNEY Filed Sept. 24, 1959 2 Sheets-Sheet 1 Fig.

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Henry J. Franz 1N VEN TOR.

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May 15, 1962 H. .1. FRANZ 3,034,415

AIR cooLEn CHIMNEY Filed sept. 24, 1959 Sheets-Sheet 2 3 36 F fg. 2

| l l l l Henry J Franz INVENTOR.

BY maa@ WWW United States Patent fiiice 3,034,415 Patented May 15, 1962 3,034,415 Y AIRCOOLED CHIMNEY Henry J. Franz, R.D. 2, 130x306, Kingston, N.Y., assigner of fifty percent to Florence M. Taylor, Kingston, N.Y. Filed Sept. 24, 1959, Ser. No. 842,074 7 Claims. (Cl. 98-33) This invention relates to a combined chimney and safety device for buildings of any type.

An object of the invention is to provide an air cooled chimney which may be used as a safety device in case of tire in the building.

Briefly, the invention is embodied in a chimney with a flue portion at the center thereof, together with a pair of separate chambers surrounding the ueand located between the liuewalls and the outer -walls of the chimney. There are a number of individual devices connected with the flue and chambers by which to cool the ue, preventing it from becoming excessively overheated, thereby avoiding a fire possibility. Other individual devicesinclude air blowers so arranged that the inside of the building may be exhausted of smoke in case there is a fire in the building.

These, together with other objects and advantages which will become subsequently apparent, reside in the details of construction and operation asv more fully hereinafter described and claimed, reference being had to the accompanying drawings forming a part hereof, wherein like numerals refer to like parts thoughout, and in which:

FIGURE 1 is a perspective view of the chimney showing it alongside of a building which it services.

FIGURE 2 is a longitudinal sectional view taken on the line 2 2 of FIGURE l.

FIGURE 3 is a sectional view taken on line 3 3 of FIGURE 2.

FIGURE 4 is a cross-sectional view taken on line 4-4 of FIGURE 2.

FIGURE 5 is a cross-sectional View taken on the line 5-5 of FIGURE 2.

In the accompanying drawings there is illustrated a building which diagrammatically represents any kind of building having a furnace 12 therein. The chimney 14 services the furnace 12 and also the interior of the entire building. Chimney 14 has four outer walls 16, 18, 29, and 22, together with four inner walls 24, 26, 28, and 30. The walls 16 and 18 and walls 20 and 28 are connected by ties 29. The wall structures form twoY separate conduits, one concentric with the other. It is preferred that the chimney walls be made of masonry construction. The inner conduit forms flue 32 whose upper end is equipped with a spark collector cap 36. As shown in FIGURES 2 and 3, the inner conduit including the flue 32 which it defines extends upwardly a considerable distance above the top surfaces of the four outer walls of the chimney. Metal hood 38 having upwardly 'and inwardly sloping side walls, together with top -wall 40, is disposed on the upper surfaces of lthe outer Walls of the chimney. There is an opening 42 in upper wall 40 within which to receive collar 44 of the spark deector 36, thereby holding it assembled in communication with flue 32. A temperature indicator 46 is mounted in building 12 and has a sensor 48 in the flue 32 so as to indicate temperature conditions in the flue. Further, the temperature indicator may be a conventional thermostat exercising control over the operation of the furnace should an unsafe high temperature condition exist in the chimney. The furnace has a smoke pipe 50 extending therefrom and through an opening in the rear wall 22 as well as the adjacent wall 30. A cooling jacket comprising a spaced concentric tube 52 is on smoke pipe 50 and has a number of apertures v54 therein to cool the smoke pipe.

The pipe 50 and the tube 52 discharge into the flue 32. As shown in lFIGURES 4 and 5, the conduit formed by the outer walls of the chimney also cooperates with the inner conduit lformed by the inner walls of the flue in order to form two separate vertical chambers 58 and 60.- Partitions 62 separate the chambers 58 and 60 from each other. Chamber `58 is a humidifier chamber inasmuch as it has a water pipe 68 extending vertically therethrough. A spray head 70 for washing down the flue'32 is at 'the upper end of water pipe 68 and located in flue 32. This prevents the accumulation of soot and other byproducts of the combustion of fuel in furnace 12 and is also used as a safety device for 'extinguishing fires should any occur. A spray head 72 is in chamber 58, being connected with the water pipe 68, but spray head 72 is merely for humidifying.

Blower 76, which is preferably electrically operated, is secured in registry With an air inlet 78 in one wall of hood 38, and it propels `an air Iblast downwardly of chamber' 58. A duct 80 extending through the rear wall of the chimney has a ventilator grille 82, preferably with adjustable louvers, and the louvers are in the building so that humidified air may be supplied within the building.

Chamber 60 has a blower 84 connected in registry therewith, the blower being secured to a wall of hood 38 and communicative with an air outlet opening 88 therein. The lower end of chamber 60 has one or more ducts in registry therewith as shown in FIG- URES y1 and 5 and also registered with the interior of the building. Should the building be filled with smoke, the blower 84 can be used for exhausting the smoke from the building by drawing it up chamber 60 and through opening 88. As shown in FIGURE 3, an electrical conduit 92 extends vertically through chamber 6l) in order to house the electric cables for both blowers 84 and 76.

Access door 96 is at the lower part of Wall 18 of the chimney, and this may be vented for inlet air. Further, FIGURES 2 and 3 disclose a sewer line 98 to receive the wash Water from spray head 70 and provide a proper disposal of this water.

It is to be understood that the chimney in accordance with this invention is a safety device, many precautions being built in the chimney, against fire and smoke hazards. It is further understood that the chimney may be used with any type of building.

The foregoing is considered as illustrative only of the principles of the invention. Further, since numerous modifications and changes will readily occur to those skilled in the art, it is not desired to limit .the invention to the exact construction Iand operation shown and described, and accordingly all suitable modifications and equivalents may be resorted to, falling Within the scope of the invention as claimed.

What is claimed as new is as follows:

l. A chimney comprising inner and outer walls, said inner and outer Walls being spaced from each other and defining a chamber therebetween, said inner Walls defining a ue and extending above the top of the outer walls, a hood on the outer walls substantially enclosing the upper portion of the flue and communicating with the chamber, a blower in the hood communicating with the atmosphere for receiving air therefrom and blowing said air downwardly through the chamber, means in the chamber for humidifying the air, a smoke pipe extending through certain of the inner and outer walls, said smoke pipe traversing the chamber and communicating with the -ue for connecting a furnace thereto, and a cooling jacket encircling the smoke pipe in spaced, concentric relation thereto, said jacket having perforations in an intermediate portion communicating with Y spray head Y into the iiue. Y

the chamber for receiving humidied air therefromy and communicating at one end with the flue for discharging said humiditied air thereinto around the smoke pipe.

2.*The combination of claim 1, together with a water mounted in said upper portion of said ue. 3. The combination ofrclaim 2, and a water drain pipe connected to the lower end of the ue.

4. A chimney in accordance with claim 1, said humidifying meansincluding a vertical water pipe in the chamber, and a downwardly directed spray head on sain` pipe in said chamber, Y

5. A chimney in Vaccordance with claim 1, said hu midifying means including a vertical Water supply pipe in the chamber, and a spray head on saidpipe in the chamber, said pipe having its upper end Vportion extending through one of the inner walls and discharging 6. A chimney for a furnace located in a building, said chimney comprising spaced inner and outer walls de tininga chamber therebetween, said inner Walls deining a ue, vertical partitions lbetween the inner and outer walls dividing the chamber into a pair of compartments, ducts communicating the compartments with the building at spaced points, arsmoke pipe traversingy the chamber4 and 'communicating the Y furnace with the ue, a blower communicating with the upper portion of one compartment for impelling air from the atmosphere therethrough into the lbuilding, an exhaust blower com- Ymunicating withV the other Vcompartment for returning the air from theV building therethrough to the atmosphere, and means in said one' compartment for humidin fying the air.

`7. A chimney inraccordance with claim 6, together with a cooling jacket encircling the smoke pipe in spaced, concentric relation thereto and communicatingV at one end with the flue and at an intermediate point with said one compartment for receiving air therefrom.

ReferenceskCited in the ileiof` patent Y UNITED sTArEs PATENTS' 572,174 MOOI! Dec. 1, 1896 v1,011,497 Si. .10h11 Dec. 12, 1911 ,1,473,648 Y Sherer Nov. 13, 1923 .2,072,833 v V Baird et al. Mar. 2, 1937 2,075,221 Palenzuela l Mar. 30, 1937 y2,634,111 Wickland Apr. 7, 1953 2,711,683 1955 [Ryder June 28, 

